code: def is_mpi_gpu(predicate, array):
      if array.backend in ("cupy", "numba", "dlpack-cupy"):
          if mpi_predicate(predicate):
              return True
      return False
  
file_path: mpi4py/test/mpiunittest.py
imports: from collections import namedtuple
  import contextlib
  import unittest
label_desc: Use image node_id 4 for calling a global function with example usage: is_mpi_gpu(predicate, array) and returns: False, True